<!DOCTYPE html>
<html xmlns:th="http://www.thymeleaf.org">
<head
	th:replace="/common/template :: header(~{::title},~{::link},~{::style})">
<title>LING登录</title>
</head>
<body class="layui-layout-login">
	<div class="login-bg">
		 <canvas id="star"></canvas>
	</div>
	<div class="login-content" th:th:classappend="${isCaptcha} ? 'captcha'">
		<h1 class="login-box-title">
			<i class="fa fa-fw fa-user"></i>登录
		</h1>
		<form class="layui-form" th:action="@{/login}" method="post">
			<div class="layui-form-item">
				<label class="layui-icon layui-icon-username" for="username"></label>
				<input class="layui-input" type="text" value="admin" name="username" id="username"
					placeholder="用户名">
			</div>
			<div class="layui-form-item">
				<label class="layui-icon layui-icon-password" for="password"></label>
				<input class="layui-input" type="password" value="asdf1234" name="password"
					id="password" placeholder="密码">
			</div>
			<div th:if="${isCaptcha}" class="layui-form-item captcha-item">
				<label class="layui-icon layui-icon-vercode"></label> <input
					class="layui-input" type="text" name="captcha" autocomplete="off"
					placeholder="验证码"> <img class="captcha-img"
					th:src="@{/captcha}" />
			</div>
			<div class="layui-form-item">
				<input type="checkbox" name="rememberMe" title="记住我"
					lay-skin="primary"> <a
					class="layui-layout-right forget-password"
					href="javascript:alert('请联系超级管理员！')">忘记密码?</a>
			</div>
			<button type="submit" class="layui-btn layui-btn-fluid ajax-login">
				<i class="fa fa-sign-in fa-lg fa-fw"></i> 登录
			</button>
		</form>
	</div>


	<script th:replace="/common/template :: script"></script>
	<script th:src="@{/js/plugins/jquery-3.3.1.min.js}" charset="utf-8"></script>
	<script th:src="@{/js/login.js}" charset="utf-8"></script>
	<script th:src="@{/js/L2Dwidget.min.js}" charset="utf-8"></script>
	
	
	<script type="text/javascript">
		L2Dwidget.init();
        $(function() {
            var canvas = document.querySelector('#star')
              , ctx = canvas.getContext('2d')
            canvas.width = window.innerWidth;
            canvas.height = window.innerHeight;
            ctx.lineWidth = .3;
            ctx.strokeStyle = (new Color(150)).style;
            var mousePosition = {
                x: 30 * canvas.width / 100,
                y: 30 * canvas.height / 100
            };
            var dots = {
                nb: 150,
                distance: 50,
                d_radius: 100,
                array: []
            };
            function colorValue(min) {
                return Math.floor(Math.random() * 255 + min);
            }
            function createColorStyle(r, g, b) {
                return 'rgba(' + r + ',' + g + ',' + b + ', 0.8)';
            }
            function mixComponents(comp1, weight1, comp2, weight2) {
                return (comp1 * weight1 + comp2 * weight2) / (weight1 + weight2);
            }
            function averageColorStyles(dot1, dot2) {
                var color1 = dot1.color
                  , color2 = dot2.color;
                var r = mixComponents(color1.r, dot1.radius, color2.r, dot2.radius)
                  , g = mixComponents(color1.g, dot1.radius, color2.g, dot2.radius)
                  , b = mixComponents(color1.b, dot1.radius, color2.b, dot2.radius);
                return createColorStyle(Math.floor(r), Math.floor(g), Math.floor(b));
            }
            function Color(min) {
                min = min || 0;
                this.r = colorValue(min);
                this.g = colorValue(min);
                this.b = colorValue(min);
                this.style = createColorStyle(this.r, this.g, this.b);
            }
            function Dot() {
                this.x = Math.random() * canvas.width;
                this.y = Math.random() * canvas.height;
                this.vx = -.5 + Math.random();
                this.vy = -.5 + Math.random();
                this.radius = Math.random() * 2;
                this.color = new Color();
            }
            Dot.prototype = {
                draw: function() {
                    ctx.beginPath();
                    ctx.fillStyle = this.color.style;
                    ctx.arc(this.x, this.y, this.radius, 0, Math.PI * 2, false);
                    ctx.fill();
                }
            };
            function createDots() {
                for (i = 0; i < dots.nb; i++) {
                    dots.array.push(new Dot());
                }
            }
            function moveDots() {
                for (i = 0; i < dots.nb; i++) {
                    var dot = dots.array[i];
                    if (dot.y < 0 || dot.y > canvas.height) {
                        dot.vx = dot.vx;
                        dot.vy = -dot.vy;
                    } else if (dot.x < 0 || dot.x > canvas.width) {
                        dot.vx = -dot.vx;
                        dot.vy = dot.vy;
                    }
                    dot.x += dot.vx;
                    dot.y += dot.vy;
                }
            }
            function connectDots() {
                for (i = 0; i < dots.nb; i++) {
                    for (j = 0; j < dots.nb; j++) {
                        i_dot = dots.array[i];
                        j_dot = dots.array[j];
                        if ((i_dot.x - j_dot.x) < dots.distance && (i_dot.y - j_dot.y) < dots.distance && (i_dot.x - j_dot.x) > -dots.distance && (i_dot.y - j_dot.y) > -dots.distance) {
                            if ((i_dot.x - mousePosition.x) < dots.d_radius && (i_dot.y - mousePosition.y) < dots.d_radius && (i_dot.x - mousePosition.x) > -dots.d_radius && (i_dot.y - mousePosition.y) > -dots.d_radius) {
                                ctx.beginPath();
                                ctx.strokeStyle = averageColorStyles(i_dot, j_dot);
                                ctx.moveTo(i_dot.x, i_dot.y);
                                ctx.lineTo(j_dot.x, j_dot.y);
                                ctx.stroke();
                                ctx.closePath();
                            }
                        }
                    }
                }
            }
            function drawDots() {
                for (i = 0; i < dots.nb; i++) {
                    var dot = dots.array[i];
                    dot.draw();
                }
            }
            function animateDots() {
                ctx.clearRect(0, 0, canvas.width, canvas.height);
                moveDots();
                connectDots();
                drawDots();
                requestAnimationFrame(animateDots);
            }
            $('canvas').on('mousemove', function(e) {
                mousePosition.x = e.pageX;
                mousePosition.y = e.pageY;
            });
            $('canvas').on('mouseleave', function(e) {
                mousePosition.x = canvas.width / 2;
                mousePosition.y = canvas.height / 2;
            });
            createDots();
            requestAnimationFrame(animateDots);
        });
		
	</script>
</body>
</html>

